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If I have a box with a movable divided and ideal gas inside, and I have Pleft greater than Pright, therefore the movable divided moves to change the volume so that pressure is in equilibrium, then how much is the change of entropy?
An air parcel occupied by an ideal gas (T1 = 255 K, V1 = 1500m3, m1 = 1680 kg) collides and mixes with a second air parcel occupied by a second ideal gas (T2 = 280 K, V2 = 1200 m3, m2 = 1392 kg). Assuming the specific heat capacities of the gases ..
If an experiment were done with a bow and arrow, when shooting the arrow what motion would it make. A diagram would be helpful. What causes the arrow to move horizontal, and what causes the arrow to move vertical? And why do the 2 motions (horizontal..
q1. a 130 block on a frictionless table is firmly attached to one end of a spring with 40. the other end of the spring
A camera has a telephoto lens of 260-mm focal length. The lens can be moved in and out a distance of 18.5 mm from the film plane by rotating the lens barrel. what is the closest object distance that can be focused
Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total ene..
q1. a lawn roller is rolled across a lawn by a force of 128 n along the direction of the handle that is 16.1 above the
As a new electrical technician, you are designing a large solenoid to produce a uniform 0.250Tmagnetic field near its center. What current will you need to produce the necessary field
A professional boxer hits his opponent with a 1000 N (225 lb) horizontal blow that lasts for 0.15 s. Calculate the impulse imparted by his blow
Two converging lenses are placed such that they are three focal lengths apart. What is the linear magnification of the lens system
when it falls back it hits the ground with speed v1=50m/s. The mass of the ball is m=20g. Illustrate what is the total work done by the drag force while the ball is in the air?
Two speakers emit sound waves with frequency of 418 Hz. They are driven by the same oscillator so that they are in phase with each other. How far apart are the antinodes in that standing wave
A person with a weight of 273.6 lb stands on two feet with their weight equally distributed between the two shoes, What is the pressure on each shoe independently
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